Sole-edge trimmer.



PATENTBD 'MAY 2s, 1907.

W. ff. RBULMANN. 'SOLE EDGE TRIMMBR.

APPLICATION FILED DEO. 3l, 1906.

WMI

autumn,

UNITED sTATEs PATENTr oEEIoE SOLE-EDGE TRIIVIIVIER.

' Specification of Letters Patent.

' Patented May 28, 1907.

' Appiicationfilednecmbrsl,1906. seriaiNo. 350,193.

To @ZZ whom it may concern: v

Be it 'known that I, WiLLIAM F. REUL- MANN, a citizen of the UnitedStates, residing at Cincinnati, in the county of Hamilton and State ofOhio, have invented certain new and useful Im rovements in Sole EdgeTrimmers, of W 'ch the following is a specification.

My invention relates to improvements in buffers for sole edge trimmers.

One of its lobjects is to Vprovide ready means for inserting andremoving the buffer blades. j

Another object is to provide. means for simultaneously adjusting thebuffer blades relative to their sleeve, whereby the blades may be groundand reground and adjusted as reiired. y nother object is to provideimproved means for adjusting and holding the parts upon their shaft andsecuring the desired tension.

It further consists in certain details of form, combination andarrangement, all of which will be more fully set forth in thedescription of the accompanying drawings, in which;

Figure 1 is a central vertical section through a shaft with my improvedbuffer in place thereon. Fig. 2 is an end view, partly in section online v v of Fig. l. Fig. 3 is a side elevation. Fig. 4 is a perspectiveview of one of the buffer blades detached. Fig. V5 is a section on linex of Fig. 3. Fig. 6 is a section on line w 'w of Fig. 3.

A represents the shaft or mandrel which is mounted in bearings one ofwhich a is shown, said shaft being provided with a pulley and adapted tobe driven at high speed. The end of the mandrel at B is reduced in sizeand thereon is mounteda rotary cutter C having a series of teeth c. Onthe shaft in rear of the cutter is mounted a sleeve D having preferablya shoulder d. The rear end of sleeve D is threaded and is also slit at dforming a tongue d2 which is channeled at d3 to receive the end of a setscrew e carried by collar E, which is internally threaded to engage thesleeve D. -When screw e is set tight on the tongue d2 it serves to lockthe sleeve and collar E to their relative positions and to lock sleeve Dto the shaft.

Loosely mounted on sleeve D is a sleeve or collar G which carries thebuder blades I-I,

, the said blades sliding longitudinally in slots h between thel armsh', which slots as indicated in Fig. 6 are deep enough to form channelsh2 in the sleeve to support the blades nearly their entire length. Aring II encircling the blades and arms h and attached to'arms h', holdsthe blades in place.

with an internally threaded collar I. Collar I has an annular groove Iwhich engages a series of lugs k at the rear ends of the buffer blades.i represents a slot by means of which the lugs 7c are introduced intothe groove I. The collar I thus servesv to shift and adjust the bladesII endwise relative to sleeve G and also to lock the rear ends of theblades in the slots h2.

It will thus be noted that any one of the blades H may be detached bybringing the slot i opposite its lug lc and slipping the blade outendwise, also that by rotating collar I all the blades "II can besimultaneously .shifted endwise in either direction. Thus by detachingthe cutter C, all the blades can be simultaneously sharpened by grindingwhile rotating, and'as the blades are ineX- pensive and quickly replacedthe blades may be reground and reset as frequently as required toproduce eiiicient work. The forward end of the buffer blades passbetween the teeth of the cutter and serve to remove the ragged threadsof leather and to finish or scrape the work, which requires frequentsharpening and accurate adjustment.

Aspring L interposed between collars E and I serves to normally hold thesleeve G against the shoulder d, and any desired tension, or pressuremay be attained by adjusting collar E.

Having described my invention, what I claim is;

1. In a device of the character indicated, a buffer sleeve having aseries of ways to ,guide the buffer blades, a collar threaded to saidsleeve, and a series of buffer blades having members engaging saidcollar in such manner that said blades are simultaneously shiftedrendwise in either direction by the shifting of said collar, and lockedagainst movement endwise when said collar is at rest upon said sleeve.

2. In a device of the character indicated, a buffer sleeve having aseries of ways -to guide the buHer blades, a collar threaded to saidsleeve, and a series of buffer blades hav' ing members engaging saidcollar in such manner as to simultaneously shift said blades endwise ineither direction when said collar is turned upon the sleeve, said collarhaving The' rear end of collar G is threaded and ttedA IOO acrosserecess Which when shifted to register With the respective bladespermits the blades to be detached or inserted.

3. In a device of the character described, a buffer sleeve having aseries of slots to receive buffer blades, a collar threaded to saidsleeve and provided With an annular groove and a side slot leadingthereto, and a series of buffer blades having lugs adapted to engage theannular groove of said collar.

4. In a device of the character described a shaft, a sleeve adapted tobe locked to the shaft and provided with a shoulder, a collar threadedto and adapted to be locked to said sleeve, a second sleeve looselymounted on said irst named sleeve and provided with a shoulder to engagethe shoulder of said iirst sleeve, a series of builer blades carried, bv and adjustable endwise relative to said second sleeve, a collarthreaded to said second sleeve, and a spring interposed between saidsleeves to yieldingly hold their shoulders in. engagement.

In testimony whereof I have a'llixed my signature in presence of twoWitnesses.

WILLIAM F. REULMANN.

Witnesses:

AGNES MCCORMACK, C. W. MILES.

